Sentence:  “[…] the awfully hearty <WSD>sort</WSD> of Christmas cards that people do send to other people that they don't know at all well. You know. The kind that have mottoes like/ <small>  Here's rattling good luck and roaring good cheer, / With lashings of food and great hogsheads of beer.</small>nb...” 
Meaning of the word marked with <WSD> tags:  A general type.