SquireBlack 

I just bought this frame — frame only, no components other than the headset. Original paint, quite dinged up. I'm guessing early- to mid-1980s, based on

• being a 12-speed, which I presume meant a 6-speed freewheel and a "double-clanger"
• brake caliper drillings bored for recessed brake nuts
• clamp-on down tube shifter levers
• above-the bottom bracket gear cable routing, and top of the top tube rear brake cable routing
• lugged construction

The serial number is GE 02906, which doesn't seem to correspond to any of the formats in Post #1. The material sticker says "CR-MO SEAMLESS TUBING / TANGE 5 / P.G TUBES". I figure that "P.G" means "Pretty Good" ;-)



My "New Nishiki"

Serial Number GE 02906

Olympic 12 logo, and head lugs with silver lining. Cable guide on top of top tube.

Heart-shaped protrusion under the downtube to stop the shifter levers from slipping

TANGE 5 sticker; also VA registration sticker from '88

DS Suntour dropout with derailleur hanger

NDS Suntour dropout

Overview of frame

Headtube badge


Can some of you Nishiki experts tell me more? Is it possible to pin down the year?