published by subscription
... that in 18th-century England, buyers could pay to include their coat of arms in some books published by subscription?
... that in 18th-century England, buyers could pay to include their <a href="./Coat_of_arms" id="mwB-E" rel="mw:WikiLink" title="Coat of arms">coat of arms</a> in some books <b id="mwB-I"><a href="./Publication_by_subscription" id="mwB-M" rel="mw:WikiLink" title="Publication by subscription">published by subscription</a></b>?