These are Pipe to pipe hand pumps for traction engines, loco's, stationary engines etc.
They are as follows:
3/4 Ram x 3/8 Pipe (9/16 x 26tpi)
5/8 Ram x 1/4 Pipe (3/8 x 32tpi)
1/2 Ram x 3/16 Pipe (5/16 x 32tpi)
3/8 Ram x 5/32 Pipe (1/4 x 40tpi)
5/16 Ram x 1/8 Pipe (1/4 x 40tpi)
These are manufactured items, so please allow up to 7 days for delivery.