Lot 95954 – 1930-40s collection of 73 Netherlands rocket post covers from an Italian collector

1930-40s collection of 73 Netherlands rocket post covers from an Italian collector, partly written up already and many signed Bolaffi. There are numerous rare items, flown by P7,8,9, R328, P14+15 and also varieties of the labels (only 7 known, see Hopferwieser). One of the best collections we’ve seen of this interesting area of rocket evolution.