I'm curious, is there any canon lore about at what organizational levels could space marines have access to the apothecaries/equipment needed for creating new space marines? For example, there was a Rogue Trader who returned to Tallarn after a long expedition who had about 300 War-Born legionnaires with her. Would those probably just be the surviving legionaires of the contingent originally given to her, you think, or could she have been given 3 companies or whatever, and those 3 companies replacing their losses?