Let's just say, this is what a gem DCAM Proof should look like: exquisite!  The PCGS photo says it all.  In spite of an official Proof mintage of 500 pieces (of which how many were "normal" Proofs?), there is no finer example in existence.  No other Proof graded to date even comes near. ...
€4 475.00
A rainbow proof showing the whole range of colours from electric blue to puple to turquoise at the rims.  Both sides are equally spectacularly coloured.  There is a tiny scrape in the field just below the chin, but this is completely covered by the toning, so you need a glass and catch...
€2 250.00
As with most of these large coins, there is light rubbing in the field, in this case to the left of the portrait.  A good CAM striking with light golden toning around the rims. In spite of an official Proof mintage of 500 pieces, this coin is notoriously difficult to find unblemished.
€2 175.00
As with almost all known examples, it was cleaned at some stage, looooong ago, leaving some very light hair-lines.   Much is no longer apparent under a fine, even greyish toning with hints of gun-metal blue.  A good CAM striking, but PCGS didn't honour this. In spite of an official Proof...
€2 675.00
Although nowhere indicated on the coin, this and the parallel 5-Mark of 1901 were issued on the occassion of the Duke's 75th birthday. This example is a good, solid Proof.  At some point in the distant past, it was very lightly cleaned, but the surfaces have settled down nicely.  There is...
€1 675.00
A fine-looking example of this scarce coin, well-struck and with excellent contrast.  The fields around the portrait show even traces of contact, but nothing serious. Altogether a very collectable Proof, priced accordingly.
€975.00