Interesting Meyers Brevete revolver info needed

[Fernando K]

Hello

According to an official publication of the Liege Test Bank that I own, the punch with the ELG oval with the asterisk but without crown, was used until 1898 and the punch of M with the asterisk indicates the name of the controller, from 1877 onwards. so that the date can be established between 1877 and 1898.

Affectionately