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In page De Havilland Mosquito:

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During this daylight-raiding phase, Nos. 105 and 139 Squadrons flew 139 combat operations and aircrew losses were high.[19] Even the losses incurred in the squadrons' dangerous Blenheim era were exceeded in percentage terms. The Roll of Honour shows 51 aircrew deaths from the end of May 1942 to April 1943.[20] In the corresponding period, crews gained three Mentions in Despatches, two DFMs and three DFCs. The low-level daylight attacks finished on 27 May 1943 with strikes on the Schott glass and Zeiss instrument works, both in Jena. Subsequently, when low-level precision attacks required Mosquitoes, they were allotted to squadrons operating the FB.IV version. Examples include the Aarhus air raid and Operation Jericho.[citation needed]