1 Peso

Features

Country	Mexico (Estados Unidos)
Period	United Mexican States (1905-date)
Type	Standard circulation coin
Years	1970-1983
Value	1 Peso (1 MXP)
Currency	Peso (1905-1992)
Composition	Copper-nickel
Weight	9.0 g
Diameter	28.98 mm
Thickness	1.77 mm
Shape	Round
Orientation	Coin alignment ↑↓
Demonetized	11-15-1995
References	KM# 460, Tracy L. Schmidt (editor); 2019. Standard Catalog of World Coins, 2001-Date (14^th edition). Krause Publications, Stevens Point, Wisconsin, USA. ISBN 9781440248979. Thomas Michael (editor), Tracy L. Schmidt (editor); 2016. Standard Catalog of World Coins, 1601-1700 (7^th edition). Krause Publications, Iola, Wisconsin, USA. ISBN 9781440248573. Thomas Michael (editor); 2016. Standard Catalog of World Coins, 1701-1800 (7^th edition). Krause Publications, Iola, Wisconsin, USA. ISBN 9781440247064. Tracy L. Schmidt (editor); 2019. Standard Catalog of World Coins, 1801-1900 (9^th edition). Krause Publications, Stevens Point, Wisconsin, USA. ISBN 9781440248955. Tracy L. Schmidt (editor); 2019. Standard Catalog of World Coins, 1901-2000 (47^th edition). Krause Publications, Stevens Point, Wisconsin, USA. ISBN 9781440248962. Schön# 70 Gerhard Schön; 2020. Weltmünzkatalog 20. Jahrhundert: 1901-2000 (47. Auflage). Gietl Verlag, Regenstauf, Germany. ISBN 9783866461840. Helmut Kahnt, Günter Schön; 2016. Weltmünzkatalog 19. Jahrhundert: 1801-1900 (17. Auflage). Gietl Verlag, Regenstauf, Germany. ISBN 9783866461185. Gerhard Schön, Sebastian Krämer; 2017. Weltmünzkatalog 21. Jahrhundert: 2001-2016 (3. Auflage). Gietl Verlag, Regenstauf, Germany. ISBN 9783866461383.

Obverse

National Arms (Eagle on cactus facing left with snake in beak above wreath), with the inscription forming a semicircle above it

Lettering: ESTADOS UNIDOS MEXICANOS

Translation: United Mexican States

Reverse

Value with portrait of José Maria Teclo Morelos y Pavón to the left

Lettering:
UN PESO
Mo
1981

Edge

Milled

Mint

Mo	Casa de Moneda de México, Mexico, Mexico (1535-date)

Comments

This series has several variants (narrow/wide dates, thick/thin dates, open/closed 8s), some of which are described below.

1970

1975

1977
Thin date variety has wider space between numbers and coin's rim, space between sideburns and collar, lower mint mark with larger space between "M" and "o," different hair waves on back, knot on neckerchief, and ornamentation in the neck with "heart-shape" trim (opposite to the "M-shaped" ones in the normal issue).

1978
Open "8" variety has no knot on neckerchief and a higher mint mark.

1979
Thick date variety has less detail on hair at back and on the neck ornaments, wrinkles on neckerchief are fused in a single one near halfway to the back, while on the thin date they stay as two until the very tip.

1980

1981

1983

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Date	Mintage	G	VG	F	VF	XF	AU	UNC	Frequency
1970 Mo	102,715,000	1.02	0.90	0.25	0.32	0.38	0.70	0.78	23%	narrow date
1970 Mo					0.76				4%	wide date
1971 Mo	426,222,000	0.08	0.14	0.26	0.41	0.60	0.63	0.75	53%
1972 Mo	120,000,000			0.26	0.49	0.52	0.30	0.71	22%
1974 Mo	63,700,000			0.40	0.31	0.96			14%
1975 Mo			0.31	0.27	0.36	0.31			13%	short wide date
1975 Mo	205,979,000	0.76		1.78	0.59	0.56			17%	tall narrow date
1976 Mo	94,489,000			0.18	0.32	0.51	0.54		15%
1977 Mo	94,364,000			0.83	0.52	0.52			11%	thick date
1977 Mo					0.47	0.47			6%	thin date
1978 Mo	208,300,000	0.36	0.11	0.45	0.38	0.77	1.18		21%	closed 8
1978 Mo	55,140,000				0.59	2.11			8%	open 8
1979 Mo									3%	thick date
1979 Mo	117,884,000			0.36	0.30	0.60		0.75	12%	thin date
1980 Mo									1.0%	closed 8, open 9
1980 Mo	318,800,000			0.36	0.41	0.47		0.26	20%	closed 8, wide date
1980 Mo	23,865,000					1.44			4%	open 8
1981 Mo									1.8%	closed 8, closed 9
1981 Mo	413,349,000	0.77	0.44	0.20	0.49	0.71		1.04	19%	closed 8, narrow date
1981 Mo	58,616,000			1.18	0.60	1.07			6%	open 8, wide date
1982 Mo	235,000,000			0.30	0.30	0.54	0.80		14%	closed 8
1982 Mo									1.3%	open 8 (at the base)
1983 Mo									3%	narrow date
1983 Mo									0.7%	open 8
1983 Mo	1,051,000								0.4%	Proof
1983 Mo									0.10%	Proof, open 8 (at the base)
1983 Mo	100,000,000				1.10	0.59			6%	wide date

Values in the table above are expressed in USD. They are based on evaluations by Numista users and sales realized on Internet platforms. They serve as a measure, but they are not intended to be relied upon for buying, selling or exchanging. Numista does not buy or sell coins or banknotes.

Frequencies show the percentage of Numista users who own each year or variety among all the users who own this coin. Since some users own several versions, the sum may be greater than 100%.

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