Of note in the set is a beautiful, if not superb, Alexander Jagiellonian crown half-penny preserved with an excellent, virtually full mirror and in a beautiful golden patina (st.1-/2+).
Also a very nice 1511 half-penny, with lustre (st.2) and a decidedly above-average 1521 Świdnica half-penny.
Uncirculated, but also with a mirror, is also an Olbracht half-penny.
An attractive set with nice coins.