The #4 Tool (rimmed cartridges but with an attached bullet mould).

The Number 4 tool came in two styles.  The basic tool was very much like #1, but was equipped with a bullet sizing feature in the lower handle.

A much rarer version was almost exactly the same, but came with an adjustable chamber.

This model would mould a bullet slightly above standard size.  When the bullet was lubricated, it was forced through the sizing die, which packed the grease firmly in the bullet grooves, removed the surplus, and made the bullet the proper size and perfectly round.

This # 4 Tool was made to reload 25-20 cartridges

No. 4 with Detachable Blocks

The model itself is not that rare, but I thought this one was unusual in that it was chambered for the 38 Special, a caliber not usually associated with the No. 4s. Has anyone run across other off-calibers?

I also thought it was interesting that Lyman went to the trouble to make up an electrotype showing the detachable blocks, and carried it over to their intruction sheet, which had the "successors to The Ideal Manufacturing Company" added at the bottom. Yet they continued to show the "swinging hook" electro on their No. 10 boxes even though they contained the "sliding latch" model.

Guess inflation was a problem back then too as the original $6.00 printed price was struck over with "$8.00", which sounds kinda pricey to me, given that it was probably sold in the 30s.

The # 4 tool was made for the following cartridges: