On the water table you should find the model number.
The model 20 and 17 are almost the same guns, except for some small details. Engraving is one but also the hammers will vary over the models and even in the same model the parts can vary. Husqvarna bought a lot of parts from outside Sweden (Belgium) and there was no standard for these parts. If a parts finished an equivalent was put in place. For example; in the year 1901 there was a slightly modified version of the model 20. The beautiful collar hammers were replaced by simple hammers.
Model 20 was manufactured until 1946 in about 50.000 copies.
An odd model was the model 20A, which is only produced in 1943. The difference was that it had a pistol grip.
The last variant was the model 20B, produced in 1944-1956, approximately 28.000 copies. Model 20B had a pistol grip stock in walnut or red beech. At the end of the production the barrels are also made of special steels called specialstål.
In total Husqvarna produced around 80.000 model 20. Add to this the model 17, which in principle is the same gun in a more lavish version, the total number of copies is approximately 90.000. Until 1956, when production of the Model 20 had stopped Husqvarna produces approximately 235.000 Lefaucheux weapons. The model 17 and 20 was actually around 38 percent of the total number of Lefaucheux guns manufactured by Husqvarna.
(This information comes from a article written by Fredrik Franzén, a Swedish author specialized in Husqvarna guns)
I will try to post some pictures of Husqvarna toplever hammer guns I recently bought.
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Fritz
