This knife was identified as Model 4/5 from series “Strong pocket knives for peasants”, based on information from old Elsener’s catalog (you can find appropriate picture from this catalog below).
For sure, I’m not 100% sure that this identification was correct, so, if you have any other information about this knife – please let me know
Update: it’s a another variation of the same knife, – Model 3/5. Thank you, Elsinox!
- Peasant’s knives
- Gardener’s knives