Changes
/* Class B */
===Class B===
====Type B2 ''Trewhiddle''====
<gallery heights=170px mode="Packed-hover">
Kings_Lynn_Strap-end_-_(NCM)_58.JPG|Kings Lynn
</gallery>
----
====Type B4 ''Multi-head''====
<gallery heights=170px mode="Packed-hover">
</gallery>
----
====Type B5 ''Interlace''====
<gallery heights=170px mode="Packed-hover">
</gallery>
----
====Type B6 ''Side On''====
<gallery heights=170px mode="Packed-hover">
</gallery>
----
===Class C===