During the last few days I have been sorting out a small collection of single Machins which have been sitting around in a box for a couple of years.
I will admit that I had forgotten most of what I had learnt over the years and had to revert back to catalogues and lists just to verify what some of the stamps were. Quite a a few were ex booklet singles and had notched bars.
Checking through the on line Connoisseur catalogue I was amazed at some of the prices they quote for certain stamps with notched bars. Up to £15.00 for a single stamp in some cases.
Notched bars can be obtained with several values from certain mixed value booklets, others from prestige panes, and a few panes with a slight phosphor shift.
To describe these (in layman's terms) the phosphor bars have small notches or a step in either one of the top or bottom corners. It should also be noted that stamps exist with inset and notched bars. These are very desirable stamps to some and are overlooked by a lot of collectors, they also fetch a premium over normal side or two bar stamps.
I have no doubt that some of the varieties that are listed in the Connoisseur are a little over priced but at the same time I feel that several of them will be rarities of the future. I have several of these that are duplicates and have placed a few on eBay to test the market. I will keep you informed as to the outcome of the sales.
Above notched bar to the top right.