Blazon of Adam of Blair-Adam.
Charles Matthews
<a class="external free" href="https://drawshield.toolforge.org/">https://drawshield.toolforge.org/</a>. Rietstap, <i>Armorial général</i> (1884) I p.8. Debrett (1921, <a rel="nofollow" class="external autonumber" href="https://archive.org/details/debrettsbaroneta00unse/page/5/mode/1up">[1]</a> gives this in Q1 and Q4, with Q2 Littlejohn, Q3 Brydone.