New Britain Block With Unlisted Plate Variety .

I recently purchased this block for my ASFE collection . Upon receiving it I noticed the period after the "G" in the overprint was much smaller and there was no mention of this plate flaw in any of the literature that I researched .
Yesterday while going thru ebay ,I found a listing for a New Brtain stamp with a unique flaw for $29,000 on the Scott 14 stamp . The flaw is the same as on my block ,so I don't buy the ebay sellers claim of a unique stamp ,my guess is that all stamps along the left edge of the sheet may have the same thing like my block .

Here is my block with the flaws

Good ol' Wikipedia says this (in part)
Because of the short period of use of the New Britain issues, they occur quite rarely, and command high prices; the most common denominations cost at least $15 US a piece, and the five-shilling overprints fetch prices of over $10,000 on the rare occasions when they come up for sale. In addition, the overprinting process produced a number of errors, and these also command high prices.

A nice stamps Floortrader! As you say, it certainly looks like column 1 has this small stop after G. I assume you've checked the distance between G.R.I. and the value? 5mm is the norm, 6mm is a healthy retirement fund!

Based on experience elsewhere, the "small stop" error is the early stage in the degradation of the stop which will result in the "no stop" flaw (e.g. Orange Free State V.R.I. overprints, South West Africa provisionals, etc.).

I wonder if the expertise of Postmaster can tell us more about these G.R.I. surcharges?

Nice block Floortrader.

The best way to know is to look at a full sheet or large part of a sheet(i presume you already did)

The dots after the R an I ar also different sizes.

Possibility that he size of the dots alternates each column?

Robson Lowe has this to say about the pence issues (in regard to overprints on German New Guinea, which they appear to adopt for the Marshall Islands stamps, too):




The original German sheets for the pfennig values were in sheets of 100 stamps, printed 10x10. It makes sense that they would have made up one horizontal row of overprint settings, ten subjects wide, and then overprinted each row, one at a time.

I take from that description that vertical pairs are probably going to be identical and horizontal pairs are likely to be different "in greater or lesser degree."