If it is a LOEWE it should have the Spanish crest over Berlin 189X (year of manufacture) on top of the receiver and somewhere on the stock. On the left side of the receiver it should be marked MAUSER ESPANOL MODELO 1893 MANUFACTURA LOEWE BERLIN.
Can you see the year of manufacture on the receiver or stock? Can you post some more pictures of markings or serial numbers on the bolt, tigger guard assembly....