Help Identifying A German Stamp

In a trade I received a Germany 110pf stamp, definitive size, that I've been unable to find in the Scott catalog. It has orange lettering and a blue abstract design and advertises Expo 2000 in Hanover, "die Weltausstellung," a World's Fair. Its perforation is 13 3/4. There are three other German stamps of 1999-2000 that advertise the fair and are listed in the Scott catalog, #2034 (issued 4/17/99), #2060 (issued 9/16/99), and #2094 (issued August 14, 2000), all three larger-sized and with different designs than my definitive. I do find a listing for the definitive-sized stamp in Michel, where it is #2009; Michel's illustration makes certain that this is my stamp. I'm not sure what to make of Michel's dating of its issue, which is "1998, 10 Sept./1999, 10 June."

Can anyone help me find this stamp in Scott, or, if it's not there, provide an explanation of why it's not?

It is listed in a definitive set (which started in 1995) in Stanley Gibbons, SG2658, so that may also be the case in Scott.

Based on your description, Is this the stamp that you are trying to identify.


Hobsun

It may be that this is Scott 1850. It is listed as Perf 14.
Hobsun

Thanks to 22Crows and Hobsun013, whose responses have helped me to identify my mysterious stamp as Scott #1847, in a definite set in Scott dated 1994 (four years before my stamps actual issue on 9/10/98), the set subtitled by Scott as "Historic Sites Type of 1987." Since my stamp was not a "historic" one, I failed to look under that rubric. I'm still loyal to Scott but I have to admit that on many grounds Michel is superior.

Michel's dates are listed that way because there are three formats for that stamp, one of which was issued on 10 Sep 98 (perf on all fours sides from sheet and roll), and the other two of which were issued on 10 Jun 99 (top imperf and bottom imperf from booklet).