23.br1
Brass disc with shallow groove, ½'' o/d | 23.br1a
Solid brass, 9/16'' o/d with V-groove | 23.ni1
Nickel-plated steel, curved groove | 23.br2
Solid brass, 5/8'' o/d with deep groove |
23.ni
Two-part steel, eyeletted / nickel boss | 23.br3
Two-part brass, eyeletted, wider | 23.br
Solid brass, 5/8'' o/d double-tapped | 23.ni2
Nickel-plated, 5/8'' o/d double-tapped |
23.bs
Blackened steel, 5/8'' o/d with deep groove | 23.re
Red plastic, lettered Meccano England | 23.ye
Yellow plastic (canary yellow), lettered | 23.ye1
Yellow plastic (orangey yellow), lettered |
23.am
Olive green (combat multikit), lettered | 23.ye2
Yellow plastic, bush larger and flush, unmarked | 23.am1
Olive green (later combat), unmarked | 23.wh
White plastic (space kits), unmarked |
23.re1
Red plastic (space kits), unmarked |