Ug - can't believe it.
[root@centos-gig ~]# rpm -qa | grep samba samba-libs-4.4.4-14.el7_3.x86_64 samba-client-4.4.4-14.el7_3.x86_64 samba-client-libs-4.4.4-14.el7_3.x86_64 samba-common-tools-4.4.4-14.el7_3.x86_64 samba-common-libs-4.4.4-14.el7_3.x86_64 samba-common-4.4.4-14.el7_3.noarch [root@centos-gig ~]# yum -y install samba
(and it goes on to install the one missing package)
Not sure how I ended up with everything but that one ... thanks