Y.F.C. Fujita Professional in black with small copper rivets. Standard equipment on Fuji's "America" touring bicycle from 1975 -1983. The 1973 Fujita catalog gives it the designation of Model No. 165 (FPR-17)
http://vintagefuji.posthaven.com/fujita-saddle-mfg-co-ltd-catalog-number-2-circa-1973
