inscription, lower pair virtually unmounted and with faint diagonal gum bend, small thin confined to margin at top of upper pair, natural vertical paper wrinkle/crease in sheet margin between stamps and inscription, still fine and a very rare block. B.P.A. Certificate (1996)" /> unused Block of Four HK-IL, a very fresh mint block with large part original gum, marginal from the right of the sheet showing<I> "per sheet. Place the labels ABOVE th"</I> inscription, lower pair virtually unmounted and with faint diagonal gum bend, small thin confined to margin at top of upper pair, natural vertical paper wrinkle/crease in sheet margin between stamps and inscription, still fine and a very rare block. B.P.A. Certificate (1996) | Christie's