1763/4年西藏唐卡,无日期,PCGS AU53,PCGS 记录六枚,仅得一枚获更高评分。Tibet, Anonymous (1763/4), Vartula Tangka, 5.38g, the syllable "dza" in Vartula-script repeated eight times on both sides, with eight-spoked wheel in centre, both sides with single central circle (C#5.2), One of six on PCGS Population Report and only one finer. PCGS AU53#45306803