These are my sketches. Sorry for the low resolution. I had to rotate them from the scanner pictures, and I am not sure why the resolution is now so low.
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:rotate(0)/0ygcr9bsb0rpmrljh4fifx0d1qys)
:rotate(0)/b76ex7ook2suadcddbvyyxoqdr8w)
:rotate(0)/ablqlr9tnrlqxtnmnxozb48iogr0)
:rotate(0)/6rg641fnhm2vjj8yrzstl1xrb4sh)