@Don McErlean They are actually two different loco's and tenders , both made by Jouet de Paris ( France ) in the 20's and 30's
Nowadays we know them as JEP , but they were earlier trademarked as JP, JdeP then JDP ( with the D still being a capital but smaller than the J and P) ... then JEP
Jouet de Paris was formed in 1902 .
In France at the time there was also S.I.F. , The Societie Industrielle de Flerblanterie which was created by merging many smaller tinsmith companies into the one umbrella as a co-operative in 1899 and about 1909 they merged further incorporating Jouet de Paris under the wing , but the toys made by the JdP firm were still labelled as JdP etc
It is not uncommon to see very early tenders,carriages etc marked S.I.F.