Question time # 181 has been resolved by Allan.
The crest is worn on the Minicab ZK-DMM.
ZK-DMM (c/n AACA/180) was built by G L Hall of Auckland and first flew on 07-08-1975 and features a sprung steel undercarriage.
It was sold to F S Martin of Patumahoe on 06-12-1978 and then to David R King of Matamata on 02-03-1989.
The pic below shows ZK-DMM at the AACA flyin at Tauranga in 1992 - thanks to the Keith Morris collection.