Mintage:
Circulation strikes: 234,308,000
Proofs: 4

Designer: Obverse by Gilroy Roberts; reverse by Seth Huntington

Diameter: ±31 millimeters

Metal content:
Outer layers - ±75% Copper, ±25% Nickel
Center - 100% Copper

Weight: ±175 grains (±11.3 grams)

Edge: Reeded

Mintmark: None (for Philadelphia, PA) centered above the date

Image courtesy of 

Varieties:

Notes:
Four three-piece sets (Quarter Dollar, Half Dollar, and Dollar) were struck as Proofs but without mintmarks.  One set went to then-President Gerald Ford, another to the American Revolution Bicentennial Commission administrator, John W. Warner, another to Treasury Secretary William E. Simon, and the other to Gerald Ford's appointment secretary, Anne L. Armstrong.

Sources and/or recommended reading:
"The PCGS Population Report, August 2000" by The Professional Coin Grading Service

Herbert, Alan, "Coin Clinic", NUMISMATIC NEWS, October 5, 1999, Krause Publications, Iola, WI, p. 38 (see also August 27, 1974 front page of NUMISMATIC NEWS)

"Where are they now?" by Summer Douglass, COIN WORLD, September 10, 2001, page 46