Denmark Greenland. Accumulation ★★. BLOCKS OF FOUR (mainly) comprehensive stock 1960s–2000s in glassine envelopes with many complete sets, one section smaller glassine envelopes with often 1–2 blocks of each stamp, then one section somewhat larger glassine envelopes with NUMBERED MARGIN blocks of four 1–4 blocks of each stamp. Most stamps represented in both sections and hence a very high catalogue and face value!