Congo Katanga 8f Overprint, 1960

Sorry for the crappy photo but for the purposes of my question it shouldn't matter.

I was cataloging some newly acquired material and noticed this 8F stamp had 2 different overprints. Scott mentions inverted overprints but not ones where the overprint elements are switched top and bottom.

My guess is the same "manufacturers" of the inverts produced these for additional sales/speculation, but does anyone know more? Does this occur on other values?

This may / may not be of help.
(My overpints are all as your left hand side example)
https://goscf.com/t/14176

In the image from the thread you posted, the 4F is of the type on the right-hand side of my photo. One example of this stamp is for sale on Hipstamp, and it is like the one on the left-hand side.

Shermae,

A site I don't seem to be able to reference in my post lists the stamp with Katanga at top as Michel 16II and the one at the bottom as Michel 16I.

Perhaps someone who has a copy of the appropriate catalog can provide confirmation.

Dale

I was a tad hasty in response,
all mine are optd standard, ie The Belgian name is barred, with the Katanga opt.
Your examples have two instances to bar, hence the variation.
Your question then remains open.

Shown is part of the OBP(Belgian catalogue). It is a bit older the values therefore are not correct, but do give an indication on value of the 2 overprint types.

First there is the normal overprint, Bar topside, Katanga bottomside. This is the normal series. Yellow dot.

Under the red dot there is an additonal mention of "omgekeerde overprints, this mean"s overprints the other way around meaning Katanga topside and bar bottomside.

I cannot find any reference to inverted overprints in the OBP.

I think it is possible Scott means switched overprints as described above.

I think there's an exception among the 6 vertical stamps : On the 2F stamp (Michel # 12) Katanga is upside and bar bottomside.

Interesting, I likely would not have given it a second look as a loose stamp.

Thanks very much for the insights.

Yes, looking in my Michel Zentralafrika catalogue, these varieties are Katanga #16I (KATANGA on bottom) and #16II (KATANGA on top). They both have the same catalogue value, 2.80 euro mint, 2.50 euro postally used (CTO minimum value).