500 Jahre Entdeckung Amerikas (1992)

[Bizarre]

Hello everyone!

I own a set of three beautiful silver medals from 1992, issued to commemorate the 500th anniversary of the discovery of America.

Unfortunately, I've been unable to find much information about these medals. Therefore, I hope someone here can help me.

I am aware of the following information:

• Year of birth: 1992
• Topic: 500 Years Since the Discovery of America / Christopher Columbus
• Number: 3 different medals
• Weight: exactly 50 g each (weighed by myself)
• Fineness: presumably 999.9 silver (corresponding hallmark present)
• Edition: allegedly only 750 copies (according to the original eBay description)
• Version: presumably polished plate (PP)
• Packaging: wooden box with red velvet lining

I bought the set on eBay some time ago. According to the seller, a certificate should have been included, but unfortunately it was not.

Upon closer inspection, I discovered two tiny hallmarks on the medals next to the fineness mark "999.9". One of them looks to me like a face from the front, the other possibly like a head in profile with a crown.

My questions:

1. Does anyone recognize these medals or perhaps even own the same set?
2. Can anyone identify these two hallmarks and assign them to a manufacturer or mint?
3. Is the stated print run of 750 copies correct?
4. Is there any information about the original publisher or a photo of the original certificate?

I am attaching photos of all three medals, the wooden box, and macro shots of the hallmarks.

I would be very grateful for any information!

Thank you in advance and best regards from Slovenia!