This is a set of industrial round-shank needles. 

They are all the same type.  Back when Singer

was making needles in the USA, this family / class

of needle was the 135x5 / 135x7 etc. family.  In

Europe, this was called System 134, and in Japan

and Korea, DPx5.

They are all the same family, and all the same

size, and all are cross-compatible.

This is a set of 110 Groz-Beckert and Beka

(Germany) needles.

There are 30 each in sizes 18, 16 and 14, and 20

each in size 12.  All are sharp “R” points.

All are in new and unused good condition.