We keep striving to get one of these coins in some sort of VF condition. This example, minted at the Tower mint, tun mintmark, dates to between 1636-38 is in reasonable condition.
Most of these late Tower mint coins have irregular flans and this coin is no exception.
This is Type 4/1 mm tun (1636-8). A fairly common coin, this example in reasonable condition for the type. (Seaby 2789)