

Looking for any info about this small gold knife set. Vintage possible 1930s or 40s.
I found this small knife set among some old belongs and was curious about it. The only writing I can see is on the chain loop it looks like "ECCO GF".
I am guessing the set is from the late 30s to early 40s because everything else in the suitcase was also from that period. Coins, letters with dates, etc.
All I've been able to find is someone selling just the knife with no chain or box. Also curious about how much gold may be in this thing? Gold filled? Not sure about that term.
Thanks so much in advance for anyone who can help.