The State Revenue Society (SRS) catalog identifies these as Intangibles Documentary Stamps. The catalog numbers are; $0.10 - D264 Valued at $0.20 $0.25 - D266 Valued at $0.20 $0.50 - D267 Valued at $0.25 $2.50 - D269 Valued at $1.25 $5.00 - D270 Valued at $2.50 $10.00 - D270 Valued at $3.0
Missing from the series are the $0.05 - D263 $1.00 - D268
Interesting to note is that the $0.15 item is not listed for 1963 and after but is for earlier years. In addition, this series was discontinued after 1965.
I pledge allegiance to the flag of The United States of America and to the Republic for which it stands, one nation under God, indivisible with liberty and justice for all. (Just in case someone forgot the words.)