Seems to have been Düsseldorf No34.
However, 23 Engineer RE was at OsnabrückSee this extra Information23 Regiment
Royal Engineers 2 Infantry Division
Dates Location Sub-units - Remarks
1947.02 Germany: 2 and 5 Fd Sqns and 21 Fd Pk Sqn
2 Infantry Division formed Feb 47
Jan 48: 38 Fd Sqn joined from the disbanded 5 Division 2, 5 & 38 Fd Sqns & 21 Fd Pk Sqn
Jun 48: Renamed 23 Field Engineer Regiment
23 Field Engineer Regiment1948.06 Germany: Mons Barracks, Iserlohn
2, 5 and 38 Fd Sqns and 21 Fd Pk Sqn
Units were spread throughout Germany
1949.01 Germany: Gordon Barracks, Hameln 2, 5 and 38 Fd Sqns and 21 Fd Pk Sqn
1950.07 Germany: Napier Bks, Dortmund 2, 5 and 38 Fd Sqns and 21 Fd Pk Sqn
May 58: Regiment disbanded 2 Fd Sqn remained with 2 Div, 5 Fd Sqn transferred to 4 Div, 38 Fd Sqn transferred to Berlin Bde and 21 Fd Pk Sqn transferred to 40 Regt.
2 Division Engineers
1957.04 Germany: HQ at Lubbecke Formed
2 and 25 Fd Sqns and 43 Fd Pk Sqn
Jan 61: 7 Fld Sqn transferred from 1 Div (Osnabruck). 2, 7 and 25 Fd Sqns and 43 Fd Pk Sqn
Nov 61: 25 Fd Sqn moved to 4 Division Engineers, 29 Fd Sqn joined from 4 Division Engineers 2, 7 and 29 Fd Sqns and 43 Fd Pk Sqn
Sep 64: 2 Fd Sqn became 2 Armd Eng Sqn and transferred to 32 Regt. 7 and 29 Fd Sqn and 43 Fd Pk Sqn
1964.10 HQRE 2 Div moved to Osnabruck. 43 Fd Park Sqn moved to Osnabruck, remained in Div but under local command 25 Regt. 29 Fd Sqn transferred to 35 Regt (Hameln). 16 Fd Sqn transferred from 35 Regt (Osnabruck. 7 and 16 Fd Sqn and 43 Fd Pk Sqn
Jan 68: 43 Fd Park Sqn became 43 Fd Sp Sqn. 7 and 16 Fd Sqn and 43 Fd Sp Sqn
Feb 68: 7 Fd Sqn moved to Ripon, remained in 2 Div. 37 Fd Sqn transferred from 25 Regt. 7, 16 and 37 Fd Sqn and 43 Fd Sp Sqn
Apr 69: Reformed as 23 Engineer Regiment