Vickers Wellington Mk. X ??978 'U', 14 OTU Oct '44
Dad's initial solo on type

No record of the full serial number and could be any of several XXYYY notations. At least there's a unit code letter. No entry that says initial solo nor any dual training; just straight from Oxfords to Wellingtons. 14 OTU codes used were AM, GL, & VB but at what times and on what a/c is unknown to me.