Mostly European makers.
If we are talking about the model 15 favorite,which was a chambered in .22lr,.22WRF,or 25 or 32 rimfire?These rifles were made from 1915-1940.
Gunshop. .32 RIMFIRE is an obsolete cartridge, and is no longer made.
32 long is a rimfire cartridge.
.32 Long Rimfire ammunition is currently available from Old Western Scrounger, a division of Navy Arms. This is new-manufactured ammunition, produced on contract in Brazil by CBC. This is the only source of useable .32 Rimfire and it isn't cheap. This ammunition works well in the Stevens "Favorite" rifle and should work in any other firearm chambered for it. The .32 Short Rimfire is not available. Dixie Gun Works sells adapters to allow use of rifles and pistols in .32 Short and Extra Long Rimfire by using a .22 "acorn" blank as a primer. The Short adapters can be used in rifles chambered for the .32 Long, but the Extra Long adapters cannot. The .25 Rimfire hasn't been loaded since 1941 and all remaining stocks are gone. It is completely un-obtainable except for collector ammunition that is far too expensive and probably too old to shoot.
Let's use the correct terms- BULLETS are the part of a CARTRIDGE that come out of the barrel. .32 Cartridges are now centerfire, but many years ago were rimfire. .32 rimfire guns have not been made in about the past 100 years, and are considered obsolete. There are also several DIFFERENT .32 centerfire cartridges- .32 Auto, .32 S&W revolver, .32 Long, .32-20 revolver, etc.
The No. 16 (AKA Crack Shot) was manufactured from 1900-1913. It was msde in .22 and .32 Rimfire. These "Boy's Rifles" usually got a lot of use/abuse and are often found in less-than-poor condition. The Standard catalog suggests a retail value of $100 in Poor, $200 in Good, and $300 in Excellent condition. The .32 chambering is probably scarcer, but does not earn a premium. Also makes it practically useless since .32 rimfire ammunition is no longer commercially available and rimfire cartridges are not re-loadable.
Although Clerke rifles are generally outstanding items, the revolver made by the same company is not well made nor highly regarded. This item was made in both .22 rimfire and .32 S&W chamberings - if you can find one that works - expect to pay something less than $50 for it - if you try to sell one that you have - expect to be offered either nothing or less than $25.
Bullets are not likely to do you any good. You can not reload rimfire ammunition. You need to search for loaded ammunition.
Centerfire
.32 Rimfire ammunition has been out of production in the US since about 1972. Navy Arms has a small lot made in Brazil and imported into the US in the late 1990s. It is generally an obsolete cartridge, not available, other than as a collector's item, not intended to be shot.
The exact value of a 32 Rimfire Stevens Tip Up Single Shot pistol made of brass with a steel barrel is actually dependent upon a number of factors. Some of those factors would be, the age and condition of the pistol.
.32 short used to be available from Navy Arms or try some of the local gunshows for the Navy Arms .32 short rimfire.