2nd spool pin Singer 1120, 3221, 3232, H74, Singer Symphonie
 Singer 1105, 1107
 Singer 1116, 1120, 1130
 Singer 1507, 1525
 Singer 1725, 1748
 Singer 2250, 2259
 singer 2263
 Singer 2273
 Singer 2282
 Singer 2932
 Singer 3116
 Singer 3221
 Singer 3321
 Singer 3232
 Singer 7020
 Singer 7140
 Singer 8770
 Singer H74
 Singer SymphonyII
 Singer Symphony IV
 Singer Symphony V
 Singer Symphony VI